Commented out Tire logger line so that it doesn't break specs when the tmp directory doesn't exist.
Add elasticsearch service to travis configuration file.
Add JRUBY_OPTS in travis.yml in order to get JRuby build to work.  Also added Ruby 1.8.7 to travis settings.
Remove Ruby 1.8.7 from travis settings (looks like 1.8.7 is not supported).
Merge remote-tracking branch 'origin/add_travis_ci'